Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 10.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2024   22:11:33   ( -70.88,  22.28) 09/10/2024   22:12:41  ( -70.79,  24.22)   71.52                68
 09/10/2024   23:02:04   (  70.09,-169.14) 09/10/2024   23:02:19  (  70.08,-169.18)    1.32                15
 09/10/2024   23:52:46   ( -70.00,  -1.69) 09/10/2024   23:51:49  ( -69.97,  -1.70)    2.87                57
 09/13/2024   14:28:11   ( -70.22, 139.14) 09/13/2024   14:29:22  ( -70.23, 139.26)    4.51                71
 09/13/2024   15:18:54   (  70.05, -53.29) 09/13/2024   15:18:50  (  70.06, -53.32)    1.75                 4
 09/13/2024   16:09:34   ( -69.86, 114.31) 09/13/2024   16:08:21  ( -69.90, 114.08)   10.06                73
 09/16/2024   06:45:00   ( -70.16,-104.97) 09/16/2024   06:45:52  ( -70.17,-104.93)    1.65                52
 09/16/2024   07:35:44   (  70.05,  62.51) 09/16/2024   07:35:19  (  70.06,  62.55)    1.87                25
 09/16/2024   08:26:10   ( -69.12,-128.81) 09/16/2024   08:25:03  ( -69.18,-131.01)   87.36                67
 09/18/2024   23:01:48   ( -70.13,  10.88) 09/18/2024   23:02:19  ( -70.13,  10.90)    0.97                31
 09/18/2024   23:52:32   (  70.02, 178.35) 09/18/2024   23:51:46  (  70.01, 178.38)    1.53                46
 09/21/2024   14:28:00   (  70.49, -41.19) 09/21/2024   14:29:11  (  70.42, -40.41)   30.01                71
 09/21/2024   15:18:36   ( -70.08, 126.76) 09/21/2024   15:18:45  ( -70.10, 126.76)    1.91                 9
 09/21/2024   16:09:20   (  69.97, -65.77) 09/21/2024   16:08:12  (  69.98, -65.77)    0.73                68